Well-boring machine



Sept. 27. 1927.

WELL BORING MACHINE FiledA May 19 1925 2 shets-sheet 2 Patented Sept.l Z7

l UNITED sTATEs CHARLES WILD, OF EUREKA, CALIFORNIA. v

WELL-BORING MACHINE.

Application led May 19, 1925. Serial No. 31,300.

This inventionl relates to a combined underreamer and digging apparatus, theprimary object of the invention being tov provide a device of this characterl that will pump the' material dislodged by the digging l elements from the well, simultaneously with the digging action.

Another object of the' invention is to provide digging blades so constructed that they may be readily and easily removed or replaced when the same become damaged or otherwise rendered inoperative.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of'the invention.

Referring to the drawings:

Figure 1 is a longitudinal sectional view through'a combined underreamer and digger constructed in4 accordance with the inven Figure 2 is av plan view thereof. Figure 3 is a transverse sectional -view taken on line 3-8 of Figure 1. Figure 4 is an enlarged fragmental sectional view through the lower portion ofthe device. r

Figure 5 is a fragmental sectional view taken on line 5-5 of Figure 4.

Figure 64 is a fragmental sectional view taken online 6-6of Figure 4.

Referring to the drawings in detail, the

reference character 5 indicates the body portion of the device which is cylindrical in formation, the same open ends. l

Secured to the inner surface of the body portion 5 are bearing members 6 which are arranged in suitabledspaced relation with each other. Links 7 have their outer ends pivotally supported by the bearing members 6, the inner ends of the link members 7 having heads 8 formed thereon, which heads are disposed between the disks 9 and 10 respectively secured at the lower end of the rod 11 there being provided a suitable spacing coliar 1Q between the disks 9 and 10 tov hold being provided with the disks in proper spaced relation with'each` other.

/ member 21 by means of the nuts min ating In order that movement of the rod 11 will be limited a collar 11 is provided thereon, which collar is designed to engage the guiding disk 26 on the downward movement of the rod, thereby insuring against the digging members passing too far beyond .the bottom of the body portion 5.

Below the bearings 6 are guide members 13 that are formed with grooves 14 to accommodate the lateral flanges 15 formed on the Wedge members 16 that act to lock the dig- -ging members including arms 16 within the guides 13. The upper ends ofthe arms 16 are bifurcated and are shown as having curved portions 17 deiining hooks adapted to be positioned over the pins 18 to secure the arms 16 to the link members 7. Secured to the arms 16 are plates 19 that are bolted to the arms as by means of the bolts 20, the plates` being designed to overlie the pins 18 to secure the arms 16 in position. Thus itwill be seen that due to this construction, the plates 19 may be' readily and easily removed should -it become necessary to remove the arms 16 to sharpen the digging or cut'- t` g ends thereof, which cutting ends are indicated at 20.

Positioned within the body portion 5 and arranged in spaced relation to the lower end thereof is a partitioning member '21 which is provided with a central opening to accom` modate the spring housing Q2, whichK is eylindrical in formatiqn, the lower end of the housing 22 being secured to the partitioning 23. At the upper end of the spring housing Q2 are threads to accommodate the union Q4 which is' provided for connecting the spring housing 22 to the tube 25; Secured within the housing 22 b v means of the union 24 is a guiding disk 26 that is provided with a central opening to accommodate the Vrod 11, the

upper end of the rod being threaded as at 27 to be hereinafter more fully described'.

" Formed in the partitioning member4 Q1 are suitable openings that accommodate the pipes 30, the lower ends of the pipes ter''y at points adjacent to the cutting ends 2O of the arms 16 while the upper ends of these pipes are disposed above the partitioning memberl 21 wherein they discharge the material drawn therethrough;

The 4reference character 31 indicates a movable hollowA plunger which is provided with a plurality of vertical discharge pipes 32 that establish communication between the space above the partitioning member21y and upper portion of the body portion 5.

lFlap valves 33 are arranged in the pipes 32 and permit material to pass upwardly through the pipes 32 but prevent Amaterial from returning through these pipes.

A' tubular member 34 forms the support for the plunger 31, the tubular member`34 being' of a diameter to operate over. lthe member 25, there being' provided a packing gland 36 between the tubular member 34 and member to insure ,a vacuumV wit-hin thespace between the partitioning member 21 and plunger 31, when the' plunger 31 is i moved upwardly.

At the upper end of the tubular member 34 are threads 37, which threads provide means for connecting --the'ar'm 38 to the tubular member 34, nut-sl 39 *beingl provided Aon .opposite sides of the arm 38 to secure the arm to the member 34. The outer end of the arm 38 operates'hetween the guides 40 'which are arranged within the body portion 5 as clearly illustrated by Figure 2 of the drawings', so that the arm 38'will be held against rotary movement within the body portion 5.

Secured to the arm 38 are spaced arms 41 thatare provided with ,openings to accommodate the ends of 'the cross bar 42 which has an .opening to accommodate the cable 43 by means ofwhich the device may be operated to accomplish the purpose of Y the invention.

ln order that material passing through the pipes 32 maybe discharged from the body portion, openings 44 are lprovided in the bodyvportiom which openings are arranged at a *point approximately at the limit 'of the upward movement ofy the plunger 31 so that as material passes through the pipes 32, it may pass` outwardly fromy the body: portion.

.The operation of the device` is as follows:

A cable is attached to the cross bar 42 and Y the device isl held suspended, the weight of the body-portion causing the hollow plunger 31 and tubular' supporting member 34 to move upwardly until the upper end of the member 34'contacts with the stop 28, .thereby directing a vpullon the rod 11 v and jaws Aof thecutting members to move. them to'- their inactive positions, which results in the spring 29 being compressed.

The deviceis now low well for the major portion of its travel unstil the" device reaches for example four or five feet fromthe bottom of the well, whereered slowly into the.

upon the device is dropped which brings the members to their expanded or active positions, the member 11 moving downwardly until the stop v28 -Contacts with the upper end of member 34.'

With this downward movement, the valves -33 are opened, allowing material to pass upwardly through the plunger 31. Upon u pull directed to the member 31,the valves 33 will automatically close, producing a vacuum in the vacuum chamber arranged therebelow, which' vacuum will follow through the device to the bottom of the well carrying with it sand or, other loose -material upwardly, depositing From the foregoing it will be'seen that the present device will cut a circular recess in the ground'surface leaving a central core, and the water and small particles of soil spring 29 in to action forcing the cutting .Y

the material in the space between the members 31 and 21.

and stone willbe Idrawn into the'vacuum the tool is dropped into the opening being formed, with the result thatwith each movement of the device, a slight rotary movementA is imparted to change the location of the blades.

By this drill it is possible to cut a core.

which may be removed as before stated by an especially constructed tool forming the subject matter of another application to be filed', and the core preserved for sampling purposes. Y

1. In a:device of the character described, a cylindrical body portion, a partition having openings, pipes extending through the openings vand hav-ing their upper ends disposed above the partition arranged adjacent to one end of the body portion, said parti- .l

tion having a centralopening, a rod'extending through the opening, a tubular member vhousingl the rod, a stop'adjustably -mounted .on the upper end of the rod and adapted to be engaged by the tubular member, 'a plunger carried by the tubular member and adapted to move longitudinally of the body portion, rial throughv the pipes to deposit material above the partitioning member, and digging meimbers carriedvv at the lower endv of the lro said plunger adapted to draw mate` 2. In a device of the character described, i

.a cylindrical body portion, a partitioning member supported within the body portion V l1,1'1313'52'31 i and having a plurality of openingsiformed therein, pipes extending throu h the openings, a rod supported within t e body portion and having 'digging members arranged at one end thereof, a plunger movable within the body portion, said .plunger adapted to drawmaterial through the pipes and means -Yfor connecting the rod and plunger to posed between the disks, dig

fao

1 material into the body portion.

cause the rod and plunger to move simultaneously.

3. Inra; device of the character described, a body portion, a rod extending through the body portion, said vrod having spaced disks at one end thereof, links pivotally connected to the body portion and having heads dising members carried by the links, guides t rough which thedigging members move, means for moving the rod, and meansfor' suckingvmaterial vinto the body portion.

4. In a device of theicharact'er' described,

a cylindrical bodyportion, a rod movable.

through th'e body portion, pivoted link members secured to the inner surface of the body portion, digging members removably secured to Ythe links, said rod adapted to operate to move the digging members, and means operating in the body portion for drawing 5. In a device of the character described.

a cylindrical body'portioma rod extending through the bodyportion, digging members pivotally supported at one end of the body portion, means controlled bythe movement of the rod for operating the diggingmembers, means operating abovef the digging members for drawing material into. the body .portion simultaneously with the movement v. I of the digging `membersgin one direction.

. a cylindrical body portion, a rodextendingl 6. In a device of the character described,

through thebody portion, digging members,

means connected with the digging members and rod for moving the diggingV members downwardly and outwardly, one "end of said rod being threaded, a. stop member havin a threadedopening mounted on the threade portion of the rod, a plunger tube surrounding the rod and adapted to engage'the stop to move the rod longitudinally of the body portion, and a plungeroperating in the body.

portion for drawing material through the body portion.

-7. Ina device of the character described, i

a cyli-ndrical body'- portion, a partitioning member within t e body. portion and arranged adjacent to one endthereof, said partitioning member having lateral openings and a central opening, a tube `carrying a spring housing at the -lower end thereof,

'positioned within the body' portion, said v spring housing having one end'thereotdisposed Within the centra-l openingvof the partitioning member, a rod, disks on one 'end vof the rod, a coiled spring withinithe spring housing and engaging one of the disks to normallyurge the rod downwardly, digging members supported by the body portion, links connected with thedigging members, and having heads positioned between the disks for moving the digging members, and means for drawing material through the lateral openings of the partitioning member.

8. In a device of' thenharacter described,

a cylindrical body portion,a rod mounted to operate longitudinally of the body portion. movable digging members supported within the body-portion`,' links removably connected with the digging members, heads on the links, means on the rod for cooperating with the heads of the links for connecting theheads and rod, a coiled spring for normally urging the rod downwardly,

tion having discharge openings' arranged above the plunger.

In testimony that I 'CHARLES WILD.

claim the foregoing as my own, I have hereto aflixedmy signature. 

